Comparative Evaluation of PMU Algorithms for Power Quality Monitoring in Distribution

Abstract

By increasing the utilization of the grid integrated renewable power plants and use of nonlinear characteristic appliances, the quality of power is deteriorated. The increase of complexity in the power system affects power quality appreciably. To monitor the state of the distribution system, India is planning to install 1700 phasor measurement units (PMU) in the near future. Up to what degree the PMU will benefit the power quality monitoring is not known. In this paper, the investigation of the PMU algorithm and comparison with the classical algorithm are made to detect the dips and swells in the voltage profile. Till now PMUs are not in use to detect the power quality of the supply. The input data used in this paper has not been taken from the real system and all the algorithms run in this scenario to a simplified comparison between different algorithms. The Presented work will lighten the possibilities and the limitations of the PMU algorithm for swells and dip detection in the power supply.